.flex {
  display: flex;
}
.active {
  background: gray;
}
.on {
  background-color: #9B0909;
}
header {
  background: #333;
  width: 100%;
  height: 70px;
}
header /deep/ .head-nav {
  display: flex;
  height: 70px;
}
header /deep/ .head-nav .big-nav a {
  font-size: 24px;
  line-height: 70px;
  letter-spacing: 2px;
}
header /deep/ .head-nav ul {
  display: flex;
  margin-left: 40px;
  margin-right: 50px;
}
header /deep/ .head-nav ul li {
  font-size: 16px;
  height: 70px;
}
header /deep/ .head-nav ul li:hover {
  background: gray;
}
header /deep/ .head-nav ul li a {
  line-height: 70px;
  padding: 0 15px;
}
header /deep/ .head-nav input {
  border-radius: 32px;
  margin-top: 19px;
  height: 32px;
  width: 158px;
  outline: none;
  text-indent: 1em;
}
.small-nav {
  width: 100%;
  height: 34px;
  background-color: #C20C0C;
}
.small-nav /deep/ ul {
  display: flex;
  margin-left: 400px;
}
.small-nav /deep/ ul li {
  height: 34px;
}
.small-nav /deep/ ul li a {
  height: 100px;
  padding: 0 25px;
  line-height: 34px;
  font-size: 12px;
}
.carousel-item {
  height: 283px;
}
.carousel-item img {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.img-bg:nth-child(1) {
  background: url(../images/11.jpg) no-repeat center;
  width: 100%;
  height: 283px;
  background-size: cover;
}
.img-bg:nth-child(2) {
  background: url(../images/22.jpg) no-repeat center;
  width: 100%;
  height: 283px;
  background-size: cover;
}
.img-bg:nth-child(3) {
  background: url(../images/33.jpg) no-repeat center;
  width: 100%;
  height: 283px;
  background-size: cover;
}
